Tank-heater.



No. 700,294. Y Patented May 20, |902.

H. H. seeks HA. L'. HHH-TIN.

TAHK HEATER.

(Application med Feb. 17, 1902.)

THE Nonms PETns co., PHOTO-LITRO., WASHINGTON, n. c.

4UNITED STATESK HENRY II.REERs, on MIDDLRBURY, AND ARTHUR L. GRIFFIN-on ToPEKA, f 'i INDIANA.

' TAN K-HEATER.

sPEcIFIoA'rIoNforming 'part of Letters Patent No. 700,294, dated Mayao, 19o2.

Application led February 17, 1902. Serial No. 94,490. (No model.)

Io Our invention relates to tank-heatersz-'il el,

devices for heating and preventing freezing of Water in tanks; and it has for its general object to provide a tank-heater of such construction that the continuous supplyof an I5 ample quantity of fresh airto the burner is insured, with the result thata high'heat is maintained and freezing of the Water in the tank in which the heater is placed precluded.

With the foregoing in mind the invention 2o will be fully understood from the following description andv claimsvvhen .taken vin conjunction Withthe accompanying drawings, in Whichy Figure 1 is a longitudinal vertical section 25 of our improved heater in its proper operativeposition-in a tank; Fig. 2,'a horizontal' section taken in the plane indicated by the line 2 2 of Fig. 1; Fig: 3, a detail longitudinal section illustratinga modification, and Fig. 4 a perspective view of the damper employed by preference in both constructions removed. f Y y Referring by letter to the said drawings, and more particularly to Figs. 1,2, and 4 3 5 thereof, A is'a Water-tank of the ordinary or any other suitable construction, and B the body of our improved heater, which is designed to be placed on the bottom of the tank and in the water contained therein after the manner shown in Fig. l. The heaterabody `B ispreferably of sheet metal and comprises a combustion-chamb'erC, an air-inlet flue D, rising from one end of the chamber and designed to extend'above the surface of the Water in the tank, and an air-outlet flue rising from the opposite end of the chamber C and likewise designed t extend above the surface of the Water in the tank.

The ue E is preferably larger in cross-sec- 5'o tion than the flue D in about the proportion i cap c. of the combustion-chamber C. by an opening l d in the'preferredembodimentof the invenbustion from the chamberC.

shown in order 4to increase the strength of thedraft of air through the combustion-chamber C and is provided at itsl'upper endwith a preferably removable coverlctand adjacent to its upper-end withan uptake'b, having a 55 Said flue E is connectedvvith one end d, which corresponds inwidth" andi height With the combustion-chamber. This opening 6 O tionis normally occupied by a vertically-movr able damper e, Figs. l and/l, having an openf ing f preferablydisposed' in,v a plane above that of the burner,l presently described, and designed for the escape yof products of com- F is a wormorcoil of pipedis'posed inthe combustion-chamber O and having arms g h extending through one endv Wall thereof.

The arm g is designed'to'receivewaterfrom 7 0' 'the tank, While the arm=h,which is prefer-.-

ably disposed in a plane Aabove that vof Vthe arm g, has forits purpose `to convey the Wa-v ter from the Worm or coilback into the tank.

G is a burner disposed in the chamber C 75 belowtheworm or coil F and connected by a pipez'with a tank j, disposed above the Ycover Y The saidburner :is designed to be lighted and Hintroduced to its position in the chamber C through the Hue E and the opening d. It is obvious, however, that said burner might be permanently secured in the chamber O and ,lighted and Aextinguished by vany suitable means Without 'departing from the scope of our invention.- v

Inl the preferred embodiment of the invention-chamber C are connected by horizontallydisposed dues H. These extend from the flue D to points at opposite sides of and in the same transverse vertical plane as the-burner G and are provided in their inner 'sides at such points with discharge-apertures, 7o.'y By virtue of this arrangement it will beobserved that thetubes H kwill convey the fresh air to 95 and discharge it' below andfatopposite sides of the burner, with the result that ycombusf tion of the hydrocarbon supplied to theburner Will be thoroughly' supported and a high degree of heat maintained. This, in kconjuncroo ltion the interiors of the due D and combustion with the circulation of Water through the worm or coil F, will preclude freezing ot the water in the tank A.

The air-inlet lue D is shown as provided with a slide-cap Z; but-this of course is opened to a greater or less extent when the heater is in use.

The modified construction shown in Fig. 3 is similar to that in Figs. 1 and 2, except that a shallow Water-receptacle F is employed in lieu of the worm or coil F, and lamps G, having burners and chimneys, are employed in lieu of the burner G. The receptacle F of the modified construction is connected with the interior of the tank in the same manner as the Worm or coil F, and consequently it will be observed that when the modified construction is in use freezing of the Water in the tank will be prevented quite as efteetually as when the construction shown in Figs. l and 2 is employed.

XVe have entered into a detailed description of the construction and relative arrangement of parts embraced in the present and preferred embodiments of our invention in order to impart a full, clear, and exact understanding of the same. We do not desire,

however, to be understood as confining onrselves to such specific construction and arrangement of parts, as such changes or lnodiiications may be made in practice as fairly fall within the scope of our claims.

Having described our invention, what we claim, and desire to secure by Letters Patent, is

l. In the tank-heater described, the combination with the body comprising the coinbustion-chamber, the air-inlet iue rising from one end of the combustion-chamber, the airoutlet iiue of larger size in cross-section than the inlet-flue rising from the opposite end of the combustion-chamber and connected by the opening d with the interior thereof, and

the horizontal fines communicating with the air-inlet flue and extending therefrom into the combustion chamber and having discharge-apertures in theirinner sides adjacent to their free ends; of the Water-receptacle disposed in the combustion-chamber, pipes leading from said receptacle through the body and designed for the passage of Water to and from the receptacle, a burner disposed in the combustion-chamber, below the water-chamber and in a plane between the discharge-apertures of the horizontal air-supply tubes, and the damper normally occupying the opening CZ and having the aperture fin its upper portion.

2. In the tank-heater described, the combination with the body comprising the combustion-chamber, the air-outlet iiue communicating with the interior of and rising from one end of the combustion-chamber, the airinlet flue rising from the opposite end of the combustion-chamber, and the horizontal lues communicating with the air-inlet flue and extending therefrom into the combustion-chamber and having discharge-apertures in their inner sides adjacent to their free ends; of the Water-receptacle disposed in the combustionchamber', pipes leading from said receptacle through the body and designed for the passage of water to and from the receptacle, and a burner disposed in the combustion-chamber below the water-chamber and in a plane between the discharge-apertnres of the horizontal iiues.

In testimony whereof we have hereunto set our hands in presence of two subscribing witnesses.

HENRY ll. BEERS. ARTHUR Il. GRIFFIN.

Witnesses:

A. DEAHL, B. F. DEM-IL. 

